An example of to swap is give a friend a scarf in exchange for a pair of mittens.
An example of a swap is a child trading his pretzels for popcorn at snack time.
- To exchange or substitute for another of the same kind.
Idioms and Phrasal Verbs
Origin of swap
- Middle English swappen to strike, strike the hands together in closing a bargain
From American Heritage Dictionary of the English Language, 5th Edition
- Uncertain, probably from imitative origin.